DOC: update comments

include/lsgrmController.txx

@@ -209,9 +209,10 @@ void Controller<TSegmenter>::RunSegmentation()
 
 /*
  * Compute the memory occupied by one node
- * TODO: compute the exact value, e.g. experimental measures shows that
+ * TODO: compute the exact value, e.g. on a given UNIX system,
+ * experimental measures shows that
  * for one Baatz node (+pixel) memory is about 700-730 bytes...
- * And our estimation is of 456!
+ * And our estimation is about 600
  */
 template<class TSegmenter>
 unsigned int Controller<TSegmenter>::GetNodeMemory()